I may have to do a lab analysis for the vent gas. My problem was with the measurment of free H2S vs H2S associated with NH3 in the liquid phase.
Thanks 25362.
We are planning to put the odour control vessel (solid bed adsorbent) on the vent of a sour water tank. I have been asked to use 400 ppm free H2S in the water (not associated with NH3) for vessel sizing. Using Henry's law to work out conc. in the vapour phase I get very large (9%) H2S content in...